Fabrication and high‐rate performance of a safe lithium ion–sulfur battery (LISB) with sulfur‐copolymer [poly(S‐co‐divinylbenzene (DVB)] cathode having a sulfur content higher than 90 wt %, a carbon‐fiber interlayer, and a prelithiated hard‐carbon (Li‐HC) anode are reported, which mitigates problems of lithium–sulfur cells such as performance fade and safety issues due to dissolution of polysulfides and lithium‐dendrite growth. The poly(S‐co‐DVB) cathode offers scalability owing to the abundance and low cost of DVB. The Li‐HC anode, the surface of which is passivated by a solid electrolyte interphase, inhibits the deposition of polysulfides. As a result, the LISB exhibits reversible and stable cycling performance at high rates up to 3 C, which enables quick charging within 20 min, and delivers a reversible capacity of approximately 400 mAh g⁻¹ at 3 C for 500 cycles. The results give insight into the design principle of promising, quickly charged, and safe LISBs.

中文翻译：

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通过有效地结合使用硫共聚阴极和硬质碳负极来生产高速率和安全的锂离子硫电池

制造和保险箱锂离子硫电池（LISB）与硫的共聚物的高倍率性能[聚（S-共-二乙烯苯（DVB）]具有的硫含量超过90重量％时的阴极，一个碳纤维中间层，和prelithiated硬碳（LI-HC）阳极被报告，如褪色性能和安全问题由于多硫化物和锂枝晶生长的溶解的锂-硫电池的其减轻的问题。该聚（S-共‐DVB）阴极由于DVB的丰富性和低成本而具有可扩展性。Li-HC阳极的表面被固体电解质中间层钝化，从而抑制了多硫化物的沉积。结果，LISB在高达3 C的高速率下表现出可逆且稳定的循环性能，可在20分钟内快速充电，并在3 C下可进行500次循环，提供约400 mAh g ^-1的可逆容量。结果深入了解了有前途，快速充电和安全的LISB的设计原理。